According to Dale S. Beach, Human resource planning is a process of determining and assuring that the organisation will have an adequate number of qualified persons, available at the proper times, performing jobs which meet the needs of the enterprise and which provide satisfaction for the individuals involved.
How much sleep do teens need? Based on current data, we think that most teens need on the order of 9-plus hours nightly to have optimal sleep. The NSF poll data indicate that most teens fall short of this goal, many by a considerable amount. Although we think that the need for sleep does not really change across adolescence, the amount of sleep young people get does decrease in older teens.
Kids need even more sleep than adults. 1  Teens need 8 to 10 hours of sleep each night. 2  School-aged children need 9 to 12 hours of sleep each night. 3  Preschoolers need to sleep between 10 and 13 hours a day (including naps).  Toddlers need to sleep between 11 and 14 hours a day (including naps).